Patents by Inventor Santhosh Kumar Pettem

Santhosh Kumar Pettem has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System and method for controlling temperature of exhaust gas at inlet of selective catalytic reduction system
    Patent number: 11674422
    Abstract: An aftertreatment system includes a selective catalytic reduction (SCR) system, a heater, and a controller that determines a rise in temperature of exhaust gas at an outlet of the heater for a plurality of power levels, predicts a first temperature of the exhaust gas at the outlet of the heater based on the rise in temperature, predicts a second temperature of the exhaust gas at a location of the SCR system based on the first temperature, compares the second temperature for each of the plurality of power levels with a target temperature of the exhaust gas at the inlet of the SCR system, selects one of the plurality of power levels based on the comparison, and adjusts operation of the heater based on the selected one of the plurality of power levels to achieve the target temperature of the exhaust gas at the inlet of the SCR system.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: June 13, 2023
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Colin L. Norris, Bryon D. Staebler, Jeffrey Diwakar Abraham, Thomas R. Nelson, Santhosh Kumar Pettem, Dylan Lawrence Schneider
  • SYSTEM AND METHOD FOR CONTROLLING TEMPERATURE OF EXHAUST GAS AT INLET OF SELECTIVE CATALYTIC REDUCTION SYSTEM
    Publication number: 20220316377
    Abstract: An aftertreatment system includes a selective catalytic reduction (SCR) system, a heater, and a controller that determines a rise in temperature of exhaust gas at an outlet of the heater for a plurality of power levels, predicts a first temperature of the exhaust gas at the outlet of the heater based on the rise in temperature, predicts a second temperature of the exhaust gas at a location of the SCR system based on the first temperature, compares the second temperature for each of the plurality of power levels with a target temperature of the exhaust gas at the inlet of the SCR system, selects one of the plurality of power levels based on the comparison, and adjusts operation of the heater based on the selected one of the plurality of power levels to achieve the target temperature of the exhaust gas at the inlet of the SCR system.
    Type: Application
    Filed: March 29, 2022
    Publication date: October 6, 2022
    Applicant: CUMMINS EMISSION SOLUTIONS INC.
    Inventors: Colin L. Norris, Bryon D. Staebler, Jeffrey Diwakar Abraham, Thomas R. Nelson, Santhosh Kumar Pettem, Dylan Lawrence Schneider